/* ─── OLD BOOK THEME ────────────────────────────────────────────────────────
   A 19th-century book aesthetic for Tom Clancy's blog.
   Based on the prototype-1-book.html design (whoami PR #4).
   Fonts: Cinzel (titles), IM Fell English (display/italic), Libre Baskerville (body)
   ────────────────────────────────────────────────────────────────────────── */

/* ─── CUSTOM PROPERTIES ─── */
:root {
  --parchment:      #f2e8d5;
  --parchment-dark: #e8d9bf;
  --parchment-deep: #dcc9a8;
  --ink:            #1c1309;
  --ink-mid:        #3d2f1e;
  --ink-faded:      #6b5a44;
  --accent:         #7a2828;
  --accent-dim:     #a35050;
  --gold:           #8c6b2a;
  --rule:           #c2a87a;

  --content-width:  640px;
  --page-max-width: 1140px;
  --gutter-width:   220px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 18px; scroll-behavior: smooth; }

/* ─── BODY / PAPER ─── */
body {
  background: var(--parchment);
  color: var(--ink);
  font-family: 'Libre Baskerville', serif;
  font-size: 1rem;
  line-height: 1.8;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(180,140,80,0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(120,80,40,0.05) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

/* ─── PAGE STRUCTURE ─── */
.page-wrapper {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.content-col {
  max-width: var(--content-width);
  margin: 0 auto;
  position: relative;
}

/* ─── SITE HEADER / MASTHEAD ─── */
.site-header {
  text-align: center;
  padding: 2.5rem 1rem 1.5rem;
  border-bottom: 2px solid var(--rule);
  margin-bottom: 3rem;
  position: relative;
}


.site-title a {
  font-family: 'Cinzel', serif;
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  display: inline-block;
}

.ornament-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
  font-size: 0.8rem;
  color: var(--gold);
  letter-spacing: 0.5em;
  text-transform: uppercase;
  font-family: 'Cinzel', serif;
}

.ornament-top::before,
.ornament-top::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.site-nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
}

.site-nav a {
  font-family: 'Cinzel', serif;
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--ink-faded);
  text-decoration: none;
  transition: color 0.2s;
}

.site-nav a:hover { color: var(--accent); }

/* ─── ORNAMENTAL DIVIDERS ─── */
.ornament {
  text-align: center;
  color: var(--gold);
  font-size: 1.1rem;
  letter-spacing: 0.8em;
  margin: 3rem 0;
  user-select: none;
}

.rule-ornament {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
}

.rule-ornament::before,
.rule-ornament::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.rule-ornament span {
  color: var(--gold);
  font-family: 'IM Fell English', serif;
  font-style: italic;
  font-size: 0.95rem;
  white-space: nowrap;
}

/* ─── INDEX PAGE — CHAPTER ENTRIES ─── */
.chapter-list {
  margin: 0;
  padding: 0;
}

.chapter-entry {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 0 2rem;
  margin-bottom: 4rem;
  position: relative;
}

.chapter-entry + .chapter-entry {
  padding-top: 3rem;
  border-top: 1px solid var(--parchment-deep);
}

.entry-date {
  font-family: 'IM Fell English', serif;
  font-style: italic;
  font-size: 0.85rem;
  color: var(--ink-faded);
  text-align: right;
  padding-right: 1.25rem;
  border-right: 1px solid var(--rule);
  padding-top: 0.25rem;
  line-height: 1.4;
}

.entry-body {
  padding-top: 0;
}

.chapter-label {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: block;
  margin-bottom: 0.3rem;
}

.chapter-title {
  font-family: 'IM Fell English', serif;
  font-size: 1.45rem;
  font-weight: 400;
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.chapter-title a {
  color: inherit;
  text-decoration: none;
}

.chapter-title a:hover { color: var(--accent); }

/* Dropcap on index summaries */
.entry-summary > p:first-of-type::first-letter {
  font-family: 'IM Fell English', serif;
  font-size: 3.2em;
  line-height: 0.75;
  float: left;
  margin-right: 0.06em;
  margin-top: 0.08em;
  color: var(--accent);
  font-weight: 400;
}

.entry-summary {
  font-size: 0.95rem;
  color: var(--ink-mid);
  line-height: 1.75;
  margin-bottom: 0.75rem;
}

.read-more {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s;
}

.read-more::after { content: ' ❧'; }
.read-more:hover { color: var(--accent); }

/* Index tags */
.entry-tags {
  margin-top: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.entry-tags .tag {
  font-family: 'IM Fell English', serif;
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink-faded);
  text-decoration: none;
}

.entry-tags .tag::before { content: '#'; }
.entry-tags .tag:hover { color: var(--accent); }

/* ─── ARTICLE DETAIL PAGE ─── */
.article-header {
  text-align: center;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.article-chapter-label {
  display: block;
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin-bottom: 0.4rem;
}

.article-title {
  font-family: 'IM Fell English', serif;
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.article-date {
  font-family: 'IM Fell English', serif;
  font-style: italic;
  font-size: 0.85rem;
  color: var(--ink-faded);
  display: block;
  margin-top: 0.4rem;
}

/* ─── ARTICLE BODY ─── */
.article-body {
  position: relative;
}

/* Dropcap on first paragraph of article */
.article-body > p:first-of-type::first-letter {
  font-family: 'IM Fell English', serif;
  font-size: 4.4em;
  line-height: 0.72;
  float: left;
  margin-right: 0.06em;
  margin-top: 0.06em;
  color: var(--accent);
  font-weight: 400;
}

.article-body p {
  margin-bottom: 1.25rem;
}

.article-body p + p {
  text-indent: 1.5em;
  margin-top: 0;
}

/* Keep indent off the first paragraph (after dropcap) */
.article-body > p:first-of-type {
  text-indent: 0;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  font-family: 'Cinzel', serif;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin: 2rem 0 0.75rem;
}

.article-body h2 { font-size: 0.9rem; }
.article-body h3 { font-size: 0.78rem; }

.article-body blockquote {
  font-family: 'IM Fell English', serif;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--accent);
  border-left: 3px solid var(--accent-dim);
  margin: 1.5rem 0;
  padding: 0.25rem 0 0.25rem 1.25rem;
  line-height: 1.5;
}

.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--rule);
}

.article-body a:hover { text-decoration-color: var(--accent); }

.article-body ul,
.article-body ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.article-body li { margin-bottom: 0.3rem; }

.article-body code {
  font-family: 'Courier Prime', monospace;
  font-size: 0.88em;
  background: var(--parchment-dark);
  padding: 0.1em 0.3em;
  border-radius: 2px;
  color: var(--ink-mid);
}

.article-body pre {
  background: var(--parchment-dark);
  border: 1px solid var(--rule);
  padding: 1rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.85rem;
  line-height: 1.5;
}

.article-body pre code {
  background: none;
  padding: 0;
}

/* ─── GUTTER FOOTNOTES ─── */
/* Inline .footnote divs are placed right after their <sup> by the ornaments plugin.
   On wide screens, they float into the right margin.
   On narrow screens, they display inline below the reference. */
.footnote-ref {
  font-size: 0.65em;
  vertical-align: super;
  line-height: 0;
  color: var(--accent-dim);
  cursor: default;
}

.footnote {
  font-family: 'Libre Baskerville', serif;
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink-faded);
  line-height: 1.5;
  border-left: 2px solid var(--rule);
  padding-left: 0.75rem;
}

@media (min-width: 900px) {
  .article-body {
    /* Give space for the gutter */
    overflow: visible;
  }

  .footnote {
    float: right;
    clear: right;
    width: var(--gutter-width);
    margin-right: calc(-1 * (var(--gutter-width) + 2rem));
    margin-top: -1.2em;
    margin-bottom: 0.5rem;
  }
}

/* ─── ARTICLE TAGS (left margin) ─── */
.article-tags {
  margin: 2rem 0 0;
}

.article-tags .tag-label {
  font-family: 'IM Fell English', serif;
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink-faded);
  display: inline;
  margin-right: 0.25rem;
}

.article-tags .tag {
  font-family: 'IM Fell English', serif;
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink-faded);
  text-decoration: none;
}

.article-tags .tag::before { content: '#'; }
.article-tags .tag + .tag::before { content: ', #'; }
.article-tags .tag:hover { color: var(--accent); }

@media (min-width: 900px) {
  .article-tags {
    float: left;
    clear: left;
    width: 160px;
    margin-left: calc(-1 * (160px + 2rem));
    text-align: right;
    margin-top: -0.5rem;
  }
}

/* ─── ARTICLE FOOTER / NAV ─── */
.article-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
}

.article-nav a {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faded);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-width: 45%;
}

.article-nav a:hover { color: var(--accent); }

.nav-title {
  font-family: 'IM Fell English', serif;
  font-size: 0.9rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-mid);
  font-style: italic;
}

.article-nav__prev { align-items: flex-start; }
.article-nav__next { align-items: flex-end; }

/* ─── PAGINATION ─── */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  margin: 3rem 0;
  padding: 1.5rem 0;
  border-top: 1px solid var(--rule);
}

.pagination a,
.pagination span {
  font-family: 'Cinzel', serif;
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faded);
  text-decoration: none;
}

.pagination a:hover { color: var(--accent); }

.pagination .current {
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
}

/* ─── ARCHIVE / CATEGORY / TAG HEADERS ─── */
.list-header {
  text-align: center;
  padding: 2rem 0;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--rule);
}

.list-label {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: block;
  margin-bottom: 0.5rem;
}

.list-title {
  font-family: 'IM Fell English', serif;
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--ink);
}

/* ─── SITE FOOTER ─── */
.site-footer {
  margin-top: 5rem;
  padding: 2rem 1rem;
  border-top: 2px solid var(--rule);
  text-align: center;
}

.site-footer::before {
  content: '❦  ·  ❧  ·  ❦';
  display: block;
  color: var(--gold);
  font-size: 1rem;
  letter-spacing: 0.5em;
  margin-bottom: 1rem;
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 0.75rem;
}

.footer-social a {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faded);
  text-decoration: none;
}

.footer-social a:hover { color: var(--accent); }

.footer-copy {
  font-family: 'Cinzel', serif;
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  color: var(--ink-faded);
  text-transform: uppercase;
}

/* ─── OBSIDIAN CALLOUTS ─── */
.pelican-callout {
    position: relative;
    margin: 1.5rem 0;
    border-radius: 3px;
    border-left: 4px solid var(--co-border, #8c6b2a);
    background: var(--co-bg, rgba(140, 107, 42, 0.08));
    overflow: hidden;
}

.pelican-callout-title {
    display: flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.55rem 1rem;
    font-family: 'Cinzel', serif;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.05em;
    color: var(--co-color, var(--ink-mid));
    background: var(--co-title-bg, rgba(140, 107, 42, 0.12));
    user-select: none;
}

.article-body .pelican-callout-icon {
    flex-shrink: 0;
    filter: var(--co-icon-filter, brightness(0) opacity(0.7));
    opacity: 0.9;
    border: none;
}

.pelican-callout-body {
    padding: 0.75rem 1rem;
    color: var(--ink);
}

.pelican-callout-body > *:last-child { margin-bottom: 0; }

/* Foldable */
.pelican-callout-foldable .pelican-callout-title { cursor: pointer; }

.pelican-callout-foldable .pelican-callout-title::after {
    content: '▾';
    margin-left: auto;
    font-size: 0.85em;
    opacity: 0.6;
}

.pelican-callout-collapsed .pelican-callout-title::after { content: '▸'; }

.pelican-callout-collapsed .pelican-callout-body { display: none; }

/* ── Per-type colors (adapted for Old Book sepia/parchment palette) ───────── */

/* note / info / todo — dark sepia/brown #8c6b2a (gold adjusted) */
.pelican-callout-note,
.pelican-callout-info,
.pelican-callout-todo {
    --co-color:       #8c6b2a;
    --co-border:      #8c6b2a;
    --co-bg:          rgba(140, 107, 42, 0.08);
    --co-title-bg:    rgba(140, 107, 42, 0.12);
    --co-icon-filter: brightness(0) saturate(100%) invert(45%) sepia(80%)
                      saturate(600%) hue-rotate(30deg) brightness(100%);
}

/* abstract — warm brown #a35050 (accent-dim) */
.pelican-callout-abstract {
    --co-color:       #a35050;
    --co-border:      #a35050;
    --co-bg:          rgba(163, 80, 80, 0.08);
    --co-title-bg:    rgba(163, 80, 80, 0.12);
    --co-icon-filter: brightness(0) saturate(100%) invert(35%) sepia(80%)
                      saturate(700%) hue-rotate(340deg) brightness(110%);
}

/* tip / important / question — accent/dark red #7a2828 */
.pelican-callout-tip,
.pelican-callout-important,
.pelican-callout-question {
    --co-color:       #7a2828;
    --co-border:      #7a2828;
    --co-bg:          rgba(122, 40, 40, 0.08);
    --co-title-bg:    rgba(122, 40, 40, 0.12);
    --co-icon-filter: brightness(0) saturate(100%) invert(25%) sepia(85%)
                      saturate(800%) hue-rotate(340deg) brightness(105%);
}

/* success — darker sepia-green #6b5a44 (ink-faded with green tint) */
.pelican-callout-success {
    --co-color:       #6b5a44;
    --co-border:      #6b5a44;
    --co-bg:          rgba(107, 90, 68, 0.08);
    --co-title-bg:    rgba(107, 90, 68, 0.12);
    --co-icon-filter: brightness(0) saturate(100%) invert(50%) sepia(70%)
                      saturate(400%) hue-rotate(60deg) brightness(95%);
}

/* warning / caution — darker gold #c2a87a (rule with darkened saturation) */
.pelican-callout-warning,
.pelican-callout-caution {
    --co-color:       #c2a87a;
    --co-border:      #c2a87a;
    --co-bg:          rgba(194, 168, 122, 0.08);
    --co-title-bg:    rgba(194, 168, 122, 0.12);
    --co-icon-filter: brightness(0) saturate(100%) invert(68%) sepia(80%)
                      saturate(500%) hue-rotate(30deg) brightness(105%);
}

/* failure / danger / bug — dark accent red #7a2828 */
.pelican-callout-failure,
.pelican-callout-danger,
.pelican-callout-bug {
    --co-color:       #7a2828;
    --co-border:      #7a2828;
    --co-bg:          rgba(122, 40, 40, 0.08);
    --co-title-bg:    rgba(122, 40, 40, 0.12);
    --co-icon-filter: brightness(0) saturate(100%) invert(25%) sepia(85%)
                      saturate(800%) hue-rotate(340deg) brightness(105%);
}

/* example — deeper sepia/ink #3d2f1e (ink-mid) */
.pelican-callout-example {
    --co-color:       #3d2f1e;
    --co-border:      #3d2f1e;
    --co-bg:          rgba(61, 47, 30, 0.08);
    --co-title-bg:    rgba(61, 47, 30, 0.12);
    --co-icon-filter: brightness(0) opacity(0.8);
}

/* quote — faded ink #6b5a44 (ink-faded) */
.pelican-callout-quote {
    --co-color:       #6b5a44;
    --co-border:      #6b5a44;
    --co-bg:          rgba(107, 90, 68, 0.08);
    --co-title-bg:    rgba(107, 90, 68, 0.12);
    --co-icon-filter: brightness(0) opacity(0.6);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 720px) {
  html { font-size: 16px; }

  .chapter-entry {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .entry-date {
    border-right: none;
    border-bottom: 1px solid var(--rule);
    padding-right: 0;
    padding-bottom: 0.5rem;
    text-align: left;
  }

  .article-title { font-size: 1.6rem; }
}